Yourshoulders should be relaxed and square or facing forward, not hunchedover.
你的肩膀应该是被放松的,和成正方形的或者向前,而不是弯腰。
It is most advantageous to relaxed SCF when the comer radius equal to 1/14 side length of square hole.
对于方形孔, 当圆角半径为1/14方形孔边长时,对缓和应力集中系数最有利。
Square neck. Sleeveless. Relaxed fit.
广场的脖子。无袖。放松的状态。
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